Results 11 to 20 of about 204,304 (200)

An Ehrling-type inequality for the closed injective hull of Bloch ideals [PDF]

open access: yesJournal of Inequalities and Applications
The concept of injective hull of ideals of normalized Bloch mappings is introduced and a characterization is established in terms of a domination property.
A. Jiménez-Vargas   +1 more
doaj   +2 more sources

Wet Feet Warm Hearts Strong Places: a community created zine about flood resilience in Hull [PDF]

open access: yes, 2023
IntroductionWelcome to the Risky Cities zine. The art, poetry, imagery and stories in this zine have been created as part of the Risky Cities project at the University of Hull, which has explored the city of Hull's long history of living with water and ...
Hughes, Gill   +5 more
core   +8 more sources

A new method to identify key match-play behaviours of young soccer players: Development of the Hull Soccer Behavioural Scoring Tool (Anonymised dataset)

open access: yes
The aim of this research was to develop a valid and reliable Hull Soccer Behavioural Scoring Tool suitable for youth soccer match play. The method used to design the Hull Soccer Behavioural Scoring Tool comprised of a five-stage process of (i) conducting
Toner, John   +1 more
core   +8 more sources

FP-GR-INJECTIVE MODULES [PDF]

open access: yes, 2011
In this paper, we give some characterizations of FP-grinjective R-modules and graded right R-modules of FP-gr-injective dimension at most n. We study the existence of FP-gr-injective envelopes and FP-gr-injective covers.
Yang, Xiaoyan, Liu, Zhongkui
core   +1 more source

Convexity in quasi-metric spaces [PDF]

open access: yes, 2012
Includes abstract.Includes bibliographical references.The principal aim of this thesis is to investigate the existence of an injective hull in the categories of T-quasi-metric spaces and of T-ultra-quasi-metric spaces with nonexpansive ...
Otafudu, Olivier Olela
core   +1 more source

Relative injectivity and CS-modules

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
In this paper we show that a direct decomposition of modules M⊕N, with N homologically independent to the injective hull of M, is a CS-module if and only if N is injective relative to M and both of M and N are CS-modules. As an application, we prove that
Mahmoud Ahmed Kamal
doaj   +1 more source

Injective hulls of many-sorted ordered algebras

open access: yesOpen Mathematics, 2019
This paper is devoted to the study of injectivity for ordered universal algebras. We first characterize injectives in the category OALΣ⩽$\begin{array}{} \displaystyle {\mathsf{OAL}_{{\it\Sigma}}^{\leqslant}} \end{array}$ of ordered Σ-algebras with lax ...
Zhang Xia, Ma Wen, Rump Wolfgang
doaj   +1 more source

Epis and monos which must be isos

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Orzech [1] has shown that every surjective endomorphism of a noetherian module is an isomorphism. Here we prove analogous results for injective endomorphisms of noetherian injective modules, and the duals of these results.
David J. Fieldhouse
doaj   +1 more source

Hyperconvexity and endpoints in T₀-quasi-metric spaces [PDF]

open access: yes, 2013
Over the last decades much progress has been made in the investigation of hyperconvexity in metric spaces. Recently Kemajou and others have published an article concerning hyperconvexity in T₀-quasi-metric spaces.
Haihambo, Paulus
core   +1 more source

A Generalization of M-Small Modules [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2015
In this paper we introduce a generalization of M-small modules and discuss about the torsion theory cogenerated by this kind of modules in category . We will use the structure of the radical of a module in  and get some suitable results about this class ...
B. Talaee
doaj  

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